On/off switch and standby power shutoff device using same

ABSTRACT

A standby power shutoff device is provided that includes a switch generating power when turning on and generating an “on” signal using the power, a switching unit generating an “on/off” signal for a product, a power supply unit providing power for function units of the product by receiving an external input power, a power switching unit driven in response to a driving signal to cut off or connect a power supply path for the input power provided to the power supply unit, a control unit generating a control signal for powering off the product in response to an “off” signal from the switching unit, and a driving unit receiving power from the “on” signal from the switching unit, driving the power switching unit to connect the power supply path, and driving the power switching unit to cut off the power supply path in response to a “power off” control signal.

TECHNICAL FIELD

The present invention generally relates to an apparatus for cutting offstandby power which is wasted when various appliances/electronicproducts are powered “off”, if power plugs connected to theappliance/electronic products are not pulled out. The present inventionspecifically relates to a standby power cut-off apparatus thatcompletely cuts off the standby power without pulling out a power plugand an on/off switch for an on/off operation that can be appliedthereto.

BACKGROUND ART

In general, an appliance/electronic product is provided with 110 V or220 V of AC commercial power to an internal power unit by connecting apower plug of the product to a socket installed in a home or office, andusing the power by converting the commercial power to a normal DCoperating power by a power unit. The appliance/electronic productconsumes minimum necessary power, that is, standby power, for operatingan on/off switch that generates a signal for detecting a powering on/offoperation by a user and for driving the power switching unit forsupplying power to the power unit even in the general powered off state.

The surest way to cut off the standby power is to pull out a power plugfrom a socket, but it is very cumbersome to perform the operation everytime the user do not use the product and the standby power iscontinuously consumed since the power plug is generally kept connected.

Accordingly, in order to reduce the standby power, various standby powerreducing sockets and standby power reducing devices have been studiedand provided. Especially, in order to reduce the standby power,countries of the world restricts standby power of all the electronicproducts to 1 W or less and introduce programs for gradually reinforcingthe regulations.

However, since the restrictions do not regulate the power factor, theoverall power production amount of the countries is not greatlydifferent before and after the restriction, the waste of the energy isthe same as before the restriction, and the CO2 generation amount causedby the power production remains the same. Therefore, the environment iskept contaminated. In addition, since an additional complicatedconfiguration for satisfying the restriction in which the standby poweris maintained to be 1 W or less is incorporated, there has been aproblem of increasing the product price.

DETAILED DESCRIPTION OF THE INVENTION Technical Problem

Therefore, the present invention is conceived in order to solve theproblems in the conventional art as described above and provides astandby power cut-off apparatus that completely cuts off the standbypower as the power plug is pulled out if the appliance/electronicproduct is powered off even when the power plug of theappliance/electronic product is inserted.

Technical Solution

In order to achieve the purpose as described above, an aspect of thepresent invention provides a standby power shutoff device of anappliance/electronic product, including: an on/off switching unit thatself-generates power by a mechanical movement of a first knob by aturning-on control, includes a self-generating on/off switch generatingan “on” signal with the power, and generates an on/off signal of theproduct; a power unit that provides power for operating internalfunction units of the product by being provided with external inputpower; a power switching unit that is driven by a driving signal andcuts off or connects a power supply path of the external input powersupplied to the power unit; a control unit that generates a controlsignal for powering off the product by the “off” signal generated fromthe on/off switching unit; and a driving unit that obtains driving powerby on-signal power generated from the on/off switching unit, drives thepower switching unit to connect the power supply path, and drives thepower switching unit to cut off the power supply path according to acontrol signal for powering off supplied from the control unit.

According to another aspect of the present invention, the presentinvention provides a self-generating on/off switch for an on/offoperation of an appliance/electronic product, including: an on-switchmodule that self-generates power by a mechanical movement of a firstknob according to a turning-on control, and generates an “on” signalwith the power; and an off-switch module that generates an “off” signalaccording to contact-or-separation of the contact point by an operationof the first knob or a second knob provided in addition to the firstknob.

Advantageous Effects

As described above, the on/off switch and the standby power cut-offapparatus according to the present invention may completely cut off thestandby power without pulling out the power plug when theappliance/electronic product is powered “off”, so there is no need tomanage the power factor. If the apparatus according to the presentinvention is applied to all products, a country's power generationamount wasted by the standby power is reduced by 100%, and in addition,CO2 generated at the time of the power production is reduced to preventthe environmental contamination of the Earth.

BRIEF DESCRIPTION OF THE DRAWINGS

FIGS. 1A and 1B are diagrams schematically illustrating a structure of aself-generating on/off switch according to a first embodiment of thepresent invention;

FIGS. 2A and 2B are drawings schematically illustrating the structure ofthe self-generating on/off switch according to a second embodiment ofthe present invention;

FIG. 3 is a block diagram illustrating a circuit of corresponding unitsof the appliance/electronic product provided with the standby powercut-off apparatus according to the first embodiment of the presentinvention; and

FIG. 4 is a block diagram illustrating a circuit of the correspondingunits in the appliance/electronic product provided with the standbypower cut-off apparatus according to the second embodiment of thepresent invention.

MODE FOR CARRYING OUT THE INVENTION

Various aspects are now described with reference to the drawings. In thefollowing, a dial knob, a microcomputer, a press knob, a latching relay,a stick-shaped press knob, and the like are described, but they areprovided only for easier understanding of the present invention.Further, various specific definitions found in the following descriptionare provided only to help general understanding of the presentinvention, and it is apparent to those skilled in the art that thepresent invention can be implemented without such definitions.

FIGS. 1A and 1B are diagrams schematically illustrating a structure of aself-generating on/off switch according to a first embodiment of thepresent invention, FIG. 1A is a plan view of the structure and FIG. 1Bis a side view of the structure. The self-generating on/off switchaccording to the present invention illustrated in FIGS. 1A and 1Bemployed as a switch for an on/off operation for working anappliance/electronic product that requires a corresponding standby powercut-off. At this point, the self-generating on/off switch according tothe present invention distinctively includes a structure thatself-generates power for a turning-on signal and a turning-on operationat the time of an “on” operation.

That is, when the corresponding product is in an “off” state, standbypower is completely cut off by turning off a power switching unitinstalled on a power supply path to a power unit that is provided withexternal power and generates power for operating a correspondingproduct. At this point, at the time of turning on the correspondingproduct, the present invention self-generates power for operating thepower switching unit at the self-generating on/off switch.

Referring to FIG. 1, a self-generating on/off switch 1 according to thefirst embodiment of the present invention self-generates power with themechanical movement of a first knob (a dial knob 11) by the turning-onoperation of a user, and generates the turning-on signal with the power.The self-generating on/off switch 1 may include an on-switch modulegenerating an “on” signal and an off-switch module generating an “off”signal, and may be implemented by, for example, a tube-shaped dial knob11 that is installed on a plate 16 in a rotatable manner and including ahollow and a press knob 14 that is provided in the hollow of the dialknob 11 and that can be pressed.

Inside the dial knob 11, a plurality of permanent magnets 13 for powergeneration are installed with north poles and south poles alternatelyarranged in appropriate places, and a coil 8 for power generation isinstalled inside the press knob 14. Accordingly, when the dial knob 11is rotated, the permanent magnets 13 arranged therein rotate about thepress knob 14 as a rotation axis so that N poles and S poles arealternately changed, and therefore the current is generated in the coil8 provided in the press knob 14. The generated current is generatedthrough an input-output line 12 connected to the coil 8. Accordingly,the permanent magnets 13 installed in the dial knob 11 and the coil 8provided in the press knob 14 are connected with each other to form ageneration structure.

Meanwhile, the off-switch module that generates the “off” signal in theself-generating on/off switch 1 may be implemented through the pressknob 14 and the tact switch 15. That is, the operation of pressing thepress knob 14 is to be provided with an operation for powering off thecorresponding apparatus from the user. The tact switch 15 connected withthe press knob 14 is provided to come into contact with the lowerportion of the press knob 14. When the press knob 14 is pressed, contactpoints C1 and C2 of the tact switch 15 are connected, and when the pressknob 14 is unpressed, the press knob 14 comes back to the original placeby the power of a spring in the tact switch 15 so that contact points C1and C2 of the tact switch 15 are separated.

The self-generating on/off switch 1 may be configured according to thefirst embodiment of the present invention as described above. In theconfiguration, the dial knob 11 may have a rotatable structure and alsohave a structure in which the entire dial knob 11 is pressed. In thatcase, a tact switch is installed below the dial knob so that an “off”signal is generated by the tact switch when the dial knob is pressed. Inaddition, the self-generating on/off switch 1 may have variousstructures according to the present invention.

FIGS. 2A and 2B are drawings schematically illustrating the structure ofthe self-generating on/off switch according to a second embodiment ofthe present invention. FIG. 2A is a plan view of the structure and FIG.2B is a side view of the structure. Referring to FIGS. 2A and 2B, theself-generating on/off switch 1 according to the second embodiment ofthe present invention self-generates power by the mechanical movement ofthe first knob (stick-shaped press knob 2) by a user performing aturning-on operation and generates the turning-on signal with the power.Basically, the self-generating on/off switch 1 includes a smallgenerator 7 and a rotatable pinion gear 6 that is connected with a rotorof the small generator 7 and a stick-shaped press knob 2 having a rackgear structure connected with the pinion gear 6. In addition, theself-generating on/off switch 1 may include a supporting member 3 thatsupports and guides the movement of the stick-shaped press knob 2.

With the structure above, when the stick-shaped press knob 2 is pressedin the A direction, the pinion gear 6 engaged with the rack gearstructure of the stick shaped knob 2 rotates to rotate the rotor of thegenerator 7 so that the power is generated. The stick-shaped press knob2 includes a spring 4 for providing restoration force, so when thepressed stick-shaped press knob 2 is unpressed, the spring 4 moves backin the B direction so that the stick-shaped press knob 2 comes back tothe original position.

Meanwhile, when the user performs an operation of pressing thestick-shaped press knob 2, the power of the apparatus may be powered off(that is, the operation of the stick-shaped press knob may turn on thecorresponding apparatus when the corresponding product is in an “off”state, and may turn off the corresponding product when the correspondingapparatus is in an “on” state). For the configuration, a photo-coupler 5that generates an “off” signal, when the stick-shaped press knob 2 ispressed, may be provided. That is, when the stick-shaped press knob 2 ispressed, light generated from a light emitting device of thephoto-coupler 5 is blocked by one end of the press knob 2 and thepressed spring 4 so that the light is not input to the light receivingelement.

Herein, a standby power cut-off apparatus according to the firstembodiment of the present invention that is provided with theself-generating on/off switch according to the first or secondembodiment of the present invention may be described in detail withreference to FIG. 3

FIG. 3 is a block diagram illustrating a circuit of corresponding unitsof the appliance/electronic product provided with the standby powercut-off apparatus according to the first embodiment of the presentinvention. With reference to FIG. 3, the standby power shutoff deviceaccording to the first embodiment of the present invention basicallyincludes: an on/off switching unit 27 that includes the self-generatingon/off switch 1 as illustrated in FIGS. 1A, 1B, 2A, and 2B, andgenerates an on/off signal for powering on or off a correspondingproduct; a power unit 22 that provides power for operating respectiveinternal function units of the corresponding product 20 by beingprovided with an external input power; a power switching unit 26 thatcuts off or connects a power supply path of the input power driven by adriving signal and provided by the power unit; a control unit 23 thatgenerates a control signal for powering off the power of thecorresponding product by the “off” signal generated from the on/offswitching unit 27; and a driving unit 24 that obtains the on-signalpower signal generated from the on/off switching unit 27, drives thepower switching unit 26 to connect the power supply path, and drives thepower switching unit to cut off the power supply path according to thecontrol signal for powering off the power provided from the control unit23. At this time, the self-generating on/off switch 1 employs thestructure of the first embodiment illustrated in FIG. 1, for example.

The power unit 22 may be configured to be provided with 110 V or 220 Vof commercial AC power and to generate, for example, 12 V or 5 V ofpower VCC and VP for operating the product.

The power switching unit 26 may be implemented by the latching relay forpowering on and off simply by a driving signal.

The control unit 23 may be implemented by a microcomputer U1 in order tocontrol the entire operation states, calculations, and determinations.

The on/off switching unit 27 may only include the self-generating on/offswitch 1 as illustrated in FIGS. 1A, 1B, 2A, and 2B. In addition, in astructure in which the self-generating on/off switch 1 generates ACelectric power according to the embodiment of the present invention, theon/off switching unit 27 may include an AC-DC converter 21 forconverting the generated AC electric power to DC electric power and theAC-DC converter 21 supply power VG for operating the driving unit 24. Inaddition, after the operating power VG is sufficiently supplied from theAC-DC converter 21 to the driving unit 24, the time delay unit 25 may beprovided for delaying a signal output from the AC-DC converter 21 toprovide the delayed signal to the driving unit 24 so that the drivingunit 24 is turned on.

The driving unit 24 may be implemented to have a structure connecting an“on” signal provided from the on/off switching unit 27 with first tofourth transistors (for example, NPN-type transistors) for performingswitching by the control signal of the control unit 23.

At this point the first and second transistors Q1 and Q2 of the drivingunit 24 have a structure in which operating power VCC provided from thepower unit 22 and operating power VG corresponding to the “on” signalprovided from the on/off switching unit 27 is respectively provided frominputs (for example, collector terminals), an output (for example, anemitter terminal) of the second transistor Q2 is connected with thefirst terminal S of a solenoid of the power switching unit 26, and anoutput (the emitter terminal) of a first transistor Q1 is connected withthe second terminal R of the solenoid. In addition, an input (acollector terminal) of a third transistor Q3 is connected to the firstterminal S of the solenoid, an output (an emitter terminal) is connectedto the ground terminal, an input (a collector terminal) of a fourthtransistor Q4 is connected to the second terminal R of the solenoid, andan output (an emitter terminal) is connected to the ground terminal.

According to the configuration, when the “on” signal from the on/offswitching unit 27 is applied to the base terminal of the first andfourth transistor Q1 and Q4 in a “high” state, the first and fourthtransistor Q1 and Q4 are turned on, the current flows from the secondterminal R to the first terminal S of the solenoid of the latching relayof the power switching unit 26 so that the solenoid is energized,contact points C3 and C4 of the latching relay come into contact witheach other, and the power is supplied to the power unit 22.

Meanwhile, when the press knob 14 of the self-generating on/off switch 1according to the first embodiment as illustrated in FIG. 1 is pressed inorder to turn off the power of the product, contact points C1 and C2 ofthe tact switch 15 come into contact with each other and the contactpoint C1 has a configuration in which the contact point C1 is connectedwith microcomputer input I1 of the control unit 23 and provided withpower VCC for operating the corresponding product through a resistanceR1, and the contact point C2 is connected to the ground terminal.Accordingly, the contact points C1 and C2 come into contact with eachother, a signal in a low state is supplied to the microcomputer input I1of the control unit 23.

In the same manner, when the stick-shaped press knob 2 of theself-generating on/off switch 1 according to the second terminal asillustrated in FIG. 2 is pressed, the signal in the low state by thephoto-coupler 5 is configured to be supplied to the input I1 of themicrocomputer U1.

When the input I1 of the microcomputer U1 of the control unit 23 is in alow state, the control unit 23 may be configured so that an output O1 isoutput in a high state and applied to the base terminal of the secondand third transistors Q2 and Q3 of the driving unit in order to cut offpower supply. At this point, the control unit 23 is accordinglyconfigured so that the second and third transistors Q2 and Q3 are turnedon, the current flows from the first terminal S to the second terminal Rof the solenoid of the latching relay of the power switching unit 26 sothat the solenoid is energized, contact points C3 and C4 are separated,and the power supply to the power unit 22 is cut off.

Hereinafter, the operation of the standby power cut-off apparatusaccording to the present invention is described in more detail. When,for example, the dial knob 11 configured on the plate 16 illustrated inFIG. 1 is rotated in order to generate the initial electricity forturning on the power of the product, the permanent magnets 13 in thedial knob 11 rotate and N poles and S poles alternate, and the currentflows in the coil 8 mounted in the press knob 14, thereby generating theelectricity.

In addition, according to another method, when the stick-shaped pressknob 2 is pressed in the A direction as illustrated in FIG. 2, thepinion gear 6 interlocked with the rack gear structure of thestick-shaped press knob 2 rotates so that the rotor of the generator 7is rotated, thereby generating electricity.

The electricity generated in this way may be an alternating current. Inthis case, the alternating current is converted to the direct current bythe AC-DC converter 21 as illustrated in FIG. 2 so that the drivingpower VG is supplied to the driving unit 24. In order to safely drivethe latch relay 26 of the power switching unit 26[u1], after the powerVG of the driving unit is stabilized, the “on” signal is delayed by thetime delay unit so that the “on” signal of the power is supplied to thedriving unit 24 after a certain time. The “on” signal supplied to thedriving unit 24 is applied to the base terminal of the first and fourthtransistors Q1 and Q4 of the driving unit 24 in a high state and thefirst and fourth transistors Q1 and Q4 are turned on so that the currentflows from the second terminal R to the first terminal S of the solenoidof the latching relay so that the solenoid is energized, contact pointsC3 and C4 of the latching relay come into contact with each other, andthe power is supplied to the power unit 22.

If the power is supplied to the power unit 22, the power unit 22generates and supplies the power required for the product. When therequired power is supplied to the control unit 23, the control unit 23starts to control and perform the function of the product.

Meanwhile, the operation for powering off the normally operating productis described herein. When the press knob 14 of FIG. 1 is pressed, theknob of the tact switch 15 mounted under the press knob 14 is pressed,the contact points C1 and C2 of the tact switch 15 come into contactwith each other so that the resistance R1 is connected in series and theinput I1 of the microcomputer U1 becomes a low state.

In another way, when the stick-shaped press knob 2 illustrated in FIG. 2is pressed in the A direction, the stick-shaped press knob 2 blocks thelight transmitted by the photo-coupler 5 and the input I1 of themicrocomputer U1 becomes a low state by the blocking of the lighttransmission.

When the input I1 of the microcomputer U1 of the control unit 23 isinput in a low state, the microcomputer U1 determines to turn off thepower and supplies the output O1 of the microcomputer U1 in the highstate. The output O1 is applied to the base terminal of the second andthird transistors Q2 and Q3 of the driving unit 24 so that the secondand third transistors Q2 and Q3 are turned on. Accordingly, the currentflows from the first terminal S to the second terminal R of the solenoidof the latching relay so that the solenoid is energized in an oppositestate from the “on” state, and contact points C3 and C4 of the latchingrelay are separated to cut off the power supplied to the power unit 22,thereby completely cutting off the standby power.

As described above, the present invention may embody the on/off switchand the standby power cut-off apparatus using the on/off switch, andaccordingly perform the on/off switching operation and the standby powercut-off operation. In the meantime, the present invention is describedabove with specific embodiments, but various modifications may bepossible without departing from the scope of the invention.

For example, in the embodiment described above, the “on” signalgenerated from the on/off switching unit 27 is provided to the drivingunit 24, and the driving unit 24 drives the power switching unit 26, butit may be possible that the “on” signal generated from the on/offswitching unit 27 directly drives the power switching unit 26. Withreference to FIG. 4, this operation will be described in more detail.

FIG. 4 is a block diagram illustrating a circuit of the correspondingunits in the appliance/electronic product provided with the standbypower cut-off apparatus according to the second embodiment of thepresent invention. The configuration according to the second embodimentillustrated in FIG. 4 is mostly similar to the configuration of thefirst embodiment illustrated in FIG. 3. However, the second embodimenthas a structure in which the roles of the driving unit 24 and the powerswitching unit 26 in the configuration of the first embodimentillustrated in FIG. 2 are performed in a power switching unit 28configured by photo-triac which is a structure of connecting thephoto-coupler and triac in the second embodiment illustrated in FIG. 4.In this case, it is regarded that the photo-coupler portion of thephoto-triac functions as the driving unit, and the triac portionfunctions as the power switching unit.

That is, the second embodiment may have a structure in which the “on”signal (power) generated from an on/off switching unit 1 is supplied toa light emitting diode D8 of the photo-triac of the power switching unit28, and the control signal output from the third output O3 of themicrocomputer U1 of the control unit 23 is provided to the lightemitting diode D8 of the photo-triac in common.

Accordingly, when the “on” signal (power) generated from the on/offswitching unit 1 is supplied to the light emitting diode D8 of thephoto-triac of the power switching unit 28, the photo-triac is turned onso that main transmission lines T1 and T2 of the photo-triac becomeconnected. Accordingly, the power is supplied to the power unit 22, andthe power unit 22 generates the power required for the product andprovided for the product. At this point, when the power is supplied tothe microcomputer U1 of the control unit 23, the microcomputer U1 makesthe third output O3 in the high state and supplies the third output O3the light emitting diode D8 of the photo-triac so that the photo-triacis continuously in a turn-on state and the power supply to the powerunit 22 is continued.

Hereinafter, when the product is powered off, the microcomputer U1 ofthe control unit 23 outputs the third output O3 in the low state so thatthe power of the light emitting diode D8 of the photo-triac is cut offand the light is emitted. Accordingly, the photo-triac is turned off,the main transmission lines T1 and T2 of the photo-triac are cut off,the power supplied to the power unit 22 is cut off, and the standbypower becomes zero.

As described above, the standby power cut-off apparatus using thephoto-triac according to the second embodiment of the present inventionis configured, and in this case, the on/off switching unit 27 may not beprovided with the time delay unit 25, as provided in the firstembodiment illustrated in FIG. 3.

The invention claimed is:
 1. A standby power shutoff device of anappliance/electronic product, the standby power shutoff devicecomprising: an on/off switching unit for an on/off operation of theappliance/electronic product that generates an “on” signal and an “off”signal of the product; a power unit that provides power for operatinginternal function units of the product by being provided with externalinput power; a power switching unit that is driven by a driving signaland cuts off or connects a power supply path of the external input powersupplied to the power unit; a control unit that generates a controlsignal for powering off the product by the “off” signal generated fromthe on/off switching unit; and a driving unit that obtains driving powerby on-signal power generated from the on/off switching unit, drives thepower switching unit to connect the power supply path, and drives thepower switching unit to cut off the power supply path according to acontrol signal for powering off supplied from the control unit, whereinthe self-generating on/off switch unit comprises a self-generatingon/off switch that self-generates power by a mechanical movement of afirst knob according to a turning-on control, and generates the “on”signal with the power, and that generates the “off” signal according tocontact-or-separation of the contact point by an operation of the firstknob or a second knob provided in addition to the first knob accordingto a turning-off control.
 2. The standby power shutoff device accordingto claim 1, wherein the on/off switching unit comprises an AC-DCconverter that converts AC power generated from the self-generatingon/off switch to DC power so that the AC-DC converter provides an “on”signal for driving power of the driving unit, and provides an “on”signal by delaying the signal output from the AC-DC converter for apredetermined time so that the driving unit drives the power switchingunit to connect the power supply path.
 3. The standby power shutoffdevice according to claim 1, wherein the self-generating on/off switchcomprises: a tube-shaped dial knob that has a hollow installed on aplate in a rotatable manner, as the first knob; and a press knob that isprovided in the hollow and can be pressed, wherein a plurality ofpermanent magnets for power generation with N poles and S polesalternately arranged is installed inside the dial knob, a coil for powergeneration is installed in the press knob, and a current correspondingto the “on” signal is generated by rotating the dial knob and by aninteraction between the permanent magnets and the coil through the coil.4. The standby power shutoff device according to claim 3, furthercomprising: a tact switch that is connected with the press knob, whereinthe contact point of the tact switch is connected when the press knob ispressed, and the “off” signal of the on/off switching unit is generatedby an operation of the tact switch.
 5. The standby power shutoff deviceaccording to claim 1, wherein the self-generating on/off switchcomprises: a generator; a rotatable pinion gear that is connected with arotor of the generator; and a stick-shaped press knob that has a rackgear structure connected with the pinion gear, as the first knob,wherein the pinion gear interlocked with the rack gear structure of thestick-shaped press knob rotates by a movement according to an operationof pressing the stick-shaped press knob to rotate the rotor of thegenerator so that a current corresponding to the “on” signal isgenerated.
 6. The standby power shutoff device according to claim 5,further comprising: a photo-coupler in which light generated from alight emitting diode is blocked not to be input to a receiving elementby a movement of the stick-shaped press knob, wherein the “off” signalof the on/off switching unit is generated according to an output of thephoto-coupler.
 7. A self-generating on/off switch for an on/offoperation of an appliance/electronic product, the self-generating on/offswitch comprising: an on-switch module that self-generates power by amechanical movement of a first knob according to a turning-on control ofthe appliance/electronic product, and generates an “on” signal with thepower; and an off-switch module that generates an “off” signal accordingto contact-or-separation of the contact point by an operation of thefirst knob or a second knob provided in addition to the first knobaccording to a turning-off control of the appliance/electronic product.8. The self-generating on/off switch according to claim 7, furthercomprising: an AC-DC converter that converts the power generated fromthe on-switch unit to DC power, and a time delay unit that delays asignal output from the AC-DC converter for a predetermined time.
 9. Theself-generating on/off switch according to claim 7, wherein theon-switch module comprises: a tube-shaped dial knob that has a hollowinstalled on a plate in a rotatable manner, as the first knob; and apress knob that is provided in the hollow of the dial knob and can bepressed, as the second knob, wherein a plurality of permanent magnetsfor power generation with N poles and S poles alternately arranged isinstalled inside the dial knob, a coil for power generation is installedin the press knob, and a current corresponding to the “on” signal isgenerated by rotating the dial knob and by an interaction between thepermanent magnet and the coil through the coil.
 10. The self-generatingon/off switch according to claim 9, wherein the on-switch module furthercomprises: a tact switch that is connected with the press knob, whereinthe contact point of the tact switch is connected when the press knob ispressed, and the “off” signal of the on/off switching unit is generatedby an operation of tact switch.
 11. The self-generating on/off switchaccording to claim 7, wherein the on-switch module comprises: agenerator; a rotatable pinion gear that is connected with a rotor of thegenerator; and a stick-shaped press knob that has a rack gear structureconnected with the pinion gear, as the first knob, wherein the piniongear interlocked with the rack gear structure of the stick-shaped pressknob rotates by a movement according to an operation of pressing thestick-shaped press knob to rotate the rotor of the generator so that acurrent corresponding to the “on” signal is generated.
 12. Theself-generating on/off switch according to claim 11, wherein theoff-switch module comprises: a photo-coupler in which light generatedfrom a light emitting diode is blocked not to be input to a receivingelement by a movement of the stick-shaped press knob, wherein the “off”signal of the on/off switching unit is generated according to an outputof the photo-coupler.